LH analyser

I took my first ovulation test today (in fact 2) because I'm not sure wether it's positive or not. App predicted O day yesterday. I am trying to find out if I'm ovulating as I had my last depo injection on the 7th Dec 2018. Iv tried to use the analyser on the app but it won't open. What do you guys think of this result please? I think maybe negative as it is slightly lighter but there isn't too much difference